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公开(公告)号：US10333757B2
公开(公告)日：2019-06-25
申请号：US15383218
申请日：2016-12-19
Applicant: HUAWEI TECHNOLOGIES CO., LTD.
Inventor： Guangmei Ren , Hua Yan , Lei Min
Abstract: The present disclosure provides an FBMC-based pilot sending method, a channel estimation method, and a related apparatus. The FBMC-based pilot sending method includes: for each transmit antenna port, inserting a pilot symbol group at four consecutive FBMC time-frequency resource locations, where the pilot symbol group includes two auxiliary pilot symbols and two primary pilot symbols; calculating a transmit value of each auxiliary pilot symbol in the pilot symbol group according to obtained interference coefficient values and obtained transmit values of data symbols at time-frequency resource locations in a time-frequency resource location range in which each primary pilot symbol is interfered with; and sending the pilot symbol group, where the pilot symbol group includes the calculated transmit values of the auxiliary pilot symbols.
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Patent Agency Ranking
公开(公告)号：US20170265091A1
公开(公告)日：2017-09-14
申请号：US15605613
申请日：2017-05-25
Applicant: Huawei Technologies Co., Ltd.
IPC: H04W24/02 , H04B17/336 , H04B7/06
CPC classification number: H04W24/02 , H04B7/0632 , H04B17/336 , H04L1/0026 , H04L1/20 , H04L5/0048 , H04L5/0057 , H04W74/00
Abstract: The present invention relates to the field of mobile communications technologies, and in particular, to a signal transmission method, and an apparatus. In this solution, a technical feature of sending, to a receive end, an alternative transmission configuration corresponding to a selected first CQI is used. In this technical feature, the alternative transmission configuration sent to the receive end is an alternative transmission configuration corresponding to the selected first CQI. The technical feature can overcome disadvantages of relatively low accuracy of a signal obtained through demodulation by the receive end and relatively high feedback overheads in a signal transmission process. Therefore, the present invention can overcome the disadvantages of relatively low accuracy of a signal obtained through demodulation by the receive end and relatively high feedback overheads in the signal transmission process.
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公开(公告)号：US09660707B2
公开(公告)日：2017-05-23
申请号：US14476276
申请日：2014-09-03
Applicant: Huawei Technologies Co., Ltd.
IPC: H04B7/04 , H04L25/497 , H04L25/03 , H04B7/0456 , H04B7/06 , H04W24/02 , H04B7/0452
CPC classification number: H04B7/0456 , H04B7/0452 , H04B7/0665 , H04L25/03343 , H04L25/03898 , H04L25/4975 , H04W24/02
Abstract: Embodiments of the present disclosure provide a precoding method, a base station and a user equipment. The precoding method comprises: a base station acquires predetermined parameter(s) of at least one user equipment; calculates the acquired predetermined parameter(s) to obtain a calculation performance index; selects a target precoding solution according to the calculation performance index; precodes data information of all the user equipment(s) according to the target precoding solution; if the target precoding solution is a nonlinear precoding solution, sends the data information and indication signaling indicating information of the nonlinear precoding solution to each user equipment; and the user equipment receives the data information and the indication signaling which are sent by the base station; selects a receiver according to a receiver type obtained according to the indication signaling; and detects the received data information using the selected receiver.
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公开(公告)号：US09319117B2
公开(公告)日：2016-04-19
申请号：US14677402
申请日：2015-04-02
Applicant: Huawei Technologies Co., Ltd.
Inventor： Hua Yan , Tingjian Tian , Lei Chen
CPC classification number: H04B7/0417 , H04B7/0456 , H04B7/0482 , H04B7/06 , H04B7/0689 , H04L1/0025 , H04L25/0204 , H04L25/0224 , H04L25/03343
Abstract: Embodiments of the present invention disclose a codeword feedback method and a receiver, which relate to the field of communication technologies. The method includes: determining a precoding type used for downlink signal transmission, or receiving codebook indication signaling transmitted by a transmitter; selecting a codebook according to the precoding type, or selecting a codebook according to the codebook indication signaling; and selecting a codeword according to the codebook, and feeding back the codeword to the transmitter. The present invention can provide a new feedback mechanism for channel state information and a non-linear precoding codebook when needing to use both linear precoding and non-linear precoding, so that a communication system can select an appropriate precoding codebook to feed back state information according to different needs, thereby improving the performance of the communication system.
Abstract translation: 本发明的实施例公开了与通信技术领域有关的码字反馈方法和接收机。 该方法包括：确定用于下行链路信号传输的预编码类型，或者接收由发射机发送的码本指示信令; 根据预编码类型选择码本，或根据码本指示信令选择码本; 以及根据码本选择码字，并将码字反馈给发射机。 本发明可以在需要使用线性预编码和非线性预编码时提供用于信道状态信息和非线性预编码码本的新反馈机制，使得通信系统可以选择适当的预编码码本来反馈状态信息 满足不同需求，从而提高通信系统的性能。
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公开(公告)号：US10382980B2
公开(公告)日：2019-08-13
申请号：US15605613
申请日：2017-05-25
Applicant: Huawei Technologies Co., Ltd.
Abstract: The present invention relates to the field of mobile communications technologies, and in particular, to a signal transmission method, and an apparatus. In this solution, a technical feature of sending, to a receive end, an alternative transmission configuration corresponding to a selected first CQI is used. In this technical feature, the alternative transmission configuration sent to the receive end is an alternative transmission configuration corresponding to the selected first CQI. The technical feature can overcome disadvantages of relatively low accuracy of a signal obtained through demodulation by the receive end and relatively high feedback overheads in a signal transmission process. Therefore, the present invention can overcome the disadvantages of relatively low accuracy of a signal obtained through demodulation by the receive end and relatively high feedback overheads in the signal transmission process.
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公开(公告)号：US09438323B2
公开(公告)日：2016-09-06
申请号：US14933763
申请日：2015-11-05
Applicant: Huawei Technologies Co., Ltd.
Inventor： Tingjian Tian , Hua Yan , Lei Chen
CPC classification number: H04B7/0421 , H04B1/0475 , H04B7/02 , H04B7/0456 , H04B7/0617 , H04L29/06
Abstract: Disclosed are a method and device for sending a user-specific reference signal. The method provided in the present invention includes: determining a modulus identification, and performing interference elimination processing on a user-specific reference signal according to the modulus identification to obtain the user-specific reference signal after the interference elimination processing; performing beamforming processing on the user-specific reference signal after the interference elimination processing to obtain a beamforming reference signal; and performing inverse fast fourier transform (IFFT) and digital-analog conversion on the beamforming reference signal to obtain an analog signal of the user-specific reference signal, and sending the analog signal to a user terminal.
Abstract translation: 公开了用于发送用户特定参考信号的方法和装置。 本发明提供的方法包括：确定模数识别，并根据模数识别对用户专用参考信号执行干扰消除处理，以获得干扰消除处理后的用户特定参考信号; 在干扰消除处理之后对用户专用参考信号执行波束成形处理以获得波束成形参考信号; 并对波束成形参考信号执行反向快速傅里叶变换（IFFT）和数模转换，以获得用户特定参考信号的模拟信号，并将模拟信号发送到用户终端。
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